Z-Stoff ([t͡sɛt ʃtɔf], "substance Z") was a name for calcium permanganate or sodium permanganate mixed in water. It was normally used as a catalyst for T-Stoff ( high-test peroxide ) in military rocket programs by Nazi Germany during World War II .

During World War II, Germany fielded many aircraft and rockets whose fuels, and oxidizers, were designated (letter)- Stoff (pronounced [ʃtɔf]). The following list of stoffs refers to the World War II aerospace meanings if not noted otherwise.

The Walter rocket was powered by a fuel known as "Z-stoff", which was a water-based solution of sodium permanganate or calcium permanganate, and an oxidizer known as "T-stoff", or concentrated hydrogen peroxide -- a fluid that is, incidentally, unstable, corrosive, and in general extremely nasty to handle.

Hydrogen peroxide in 80% concentration (codenamed "T-Stoff") was mixed with a calcium permanganate catalyst ("Z-Stoff"), producing superheated steam and oxygen. The initial thrust of 600 kg (1300 lb.) declined to 400 kg (900 lb.) during the 10 second duration of the engine due to dropping air pressure from bottles that moved the propellants to ...

The tubing and divisions promoted mixing of the highly concentrated hydrogen peroxide (codenamed "T-Stoff") with the permanganate catalyst ("Z-Stoff"), leading to the breakdown of the peroxide and the expulsion of superheated steam and oxygen from the …

Z-Stoff (pronounced zed-stoff or zee-stoff) was a name for calcium permanganate or potassium permanganate mixed in water. It was normally used as a catalyst for T-Stoff (high test peroxide) in military rocket programs by Nazi Germany during World War II. Z-Stoff was used in the cold engine of the Messerschmitt Me 163 A airplane and in several ...

In German, Stoff means roughly the same thing as English "material", possibly related to the ubiquitous English noun "stuff", and has as broad a range of meanings, ranging from "chemical substance" to "cloth", according to the context. It was used in chemical code names in both World War I and World War II.

Z-Stoff ([t͡sɛt ʃtɔf], "sustancia Z" ) era el nombre del permanganato de calcio o permanganato de sodio mezclado en agua. Normalmente se utilizaba como catalizador para el T-Stoff (peróxido de alta prueba) en los programas de cohetes militares de la Alemania nazi durante la Segunda Guerra Mundial.

Driving the turbopump was the steam generator, which used hydrogen peroxide (codenamed T-Stoff) mixed with Z-Stoff, a catalyst consisting of a 27% solution of sodium permanganate. Those liquids were forced into a mixing chamber by compressed air.

A chemical combination that was 80 percent hydrogen peroxide, called “T-Stoff,” would be used with a solution of calcium permanganate, methyl alcohol, hydrazine hydrate, and water—called “Z-Stoff”—to power the aircraft. On meeting in the combustion chamber, these fuels would enable the engine to have a thrust of 600 to 800 pounds.